Senior Software Engineer with Python and Go (f/m/x)

Who is Hiring; Kraków; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place

Financial stability

Big-brand contracts

Internal trainings center

Mentors

Open management

Profit sharing

Sponsorship program

Team events

Comfortable offices

MySii app

Medical care

Job summary

Who is Hiring in Kraków, Poland seeks a Senior Developer (f/m/x) to design and build integration solutions that automate enterprise platforms such as GitLab and Jira. You will focus on middleware, automation tools, and GitLab CI/CD components to improve software delivery and efficiency.

You will work with Python and Go, build REST APIs, and leverage cloud technologies. English proficiency at B2 level is required; collaboration with a team of experts is expected.

Qualifications

• 5+ years of software development and integration experience.
• Strong Python and Go skills.
• Experience with GitLab CI/CD pipelines and reusable CI components.
• Extensive REST API development/consumption experience.
• Knowledge of Redis and SQLite databases.
• Cloud tech: Kubernetes, OpenShift, Azure.
• Familiarity with Elastic Stack and Open Policy Agent is a plus.
• English proficiency at B2 level.

Responsibilities

• Design and develop middleware services and integration platforms using Python and Go.
• Create integrations between GitLab, Jira, and other platforms (Elastic Stack, OPA).
• Build reusable services, libraries, and APIs for automation and orchestration.
• Design and implement CI/CD components for GitLab.
• Create cloud applications and middleware.
• Maintain Linux systems awareness and shell proficiency.

Skills

Python

Go

CI/CD GitLab

REST APIs

Redis

SQLite

Kubernetes

OpenShift

Azure

Elastic Stack

OPA

5+ yrs exp

English B2

Job description

Senior Developer (f/m/x)

We are looking for an experienced person for the position of Senior Developer (f/m/x) to join the team focused on designing and developing integration solutions that automate enterprise platforms such as GitLab and Jira. In this role, you will concentrate on creating middleware, automation tools, and CI/CD components in GitLab that improve software delivery processes and operational efficiency. Your task will be to deliver reliable automation solutions supporting the software development lifecycle in the organization. If you have a passion for creating innovative solutions, this offer is for you. Job no. JOB-8B2J8

Your tasks

• Designing and developing middleware services and integration platforms using Python and Go
• Creating robust integrations between GitLab and Jira, as well as other platforms such as Elastic Stack and Open Policy Agent
• Building reusable services, libraries, and APIs to support automation and orchestration of processes
• Designing and implementing CI/CD components for GitLab
• Creating cloud applications and middleware
• Maintaining awareness of Linux system operations and Linux shell commands

Requirements

• Min. 5 years of experience in software development and integration solutions
• Strong knowledge of programming languages Python and Go
• Strong experience working with CI/CD pipelines in GitLab and creating reusable CI components for GitLab
• Extensive experience in building and using REST APIs
• Knowledge of database technologies such as Redis and SQLite
• Experience working with cloud technologies such as Kubernetes, OpenShift, and Azure
• Familiarity with Elastic Stack (Elasticsearch, Kibana, Logstash, Beats) and Open Policy Agent (OPA) will be an additional advantage
• English language proficiency at a minimum B2 level

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion
• Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care